Shaker mounting for fourdrinier machines



1,629,087" May 17, A. ALDRICH SHAKER MOUNTING FOR FOURDRINIER MACHINES Filed Jan. 30 1925 2 Sheets-Sheet l 1,629,087- May171927' A. ALDRICH sHAKER MOUNTING Fen FOURDRINIER MACHINES Filed Jan. 50 1925 2 Sheets-Sheet 2 as are employed in the shaker mechanism 14, 19%, which has become Patent No, 1-,-

Paton -May 17, 1927.

ALonLnnron, or nnnorr, Wisconsin, seam-non '10 nnnorr men we azar rarsur came,

BELOW, WISCONSIN, A COREQMTION OF WISGONBIN.

snaxn'n kounrmc ma Application fled January This invention relates to the mounting of and support for comparatively heavy v1-- brating' or oscillating parts such for example of a Fourdriniermachine. The present application ,is a division of my co-pend1ng application Serial No, 692,644 filed February 595,593, in so far as its subject-matter is disclosed in said co-pending ap lication. Because of the heavy weight and the enormous load which must be vibrated or oscillated quite rapidly by mechanism of this kind considerable diflicultyv has been experienced in providing a thoroughly practical and satisfactory mounting for the parts on a base at which the greatest resistance occurs. Furthermore, because it. is desired to impart the-vibratory motion at a series of points considerably'spaced apart as, for example, to the wire rollsupporting frame and-the breast roll frame of a Fourdrinier machine it is desirable to employ a shaker mechanism havin' a single oscillatory shaft to which the individual motion-transmitting trains are connected; consequently due to the arrange ment of the parts and to the heavy stresses incidental to the rapid vibration under the heavy load, it is necessary that the principal parts shall be of comparatively large cross-section and weight. Under these circumstances ordinary bearings for supporting the oscillatory shaft. and the parts carried thereby, fail entirely, In other words be- P cause of the excessive friction and wear be;

tween the bearing surfaces and the dllficulty of lubricating such surfaces and in view of the smali and rapid motion, ordinary bearings are impractical.

it is, therefore, the primary purpose of the present invention to provide improved means for supporting'ashaker mechanism of the character described; likewise to pro vide a mounting of this character adapted for application to any similar situation, that is, for the support of any comparatively heavy shaft or vibratory structure; I

Another purpose of my invention is 'to provide ashaker'mounting of the character described which wili. eliminate frictionally engaging parts such-as are incidental to ordinary bearings.

Stilt another purpose is to provide a shaker moimting which will be thoroughly pracrounnnnwmn muons.

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tical and will satisfactorily meet the con ditions and requirements for which it is intended i Other objects and attendant advanta as will be appreciated by those skilded in his art as the invention becomes better understood by reference to the following description when considered in connection with the accompanying drawings, in" which- Flgure 1, is a fragmentary vertical section transversely through the shaker mechanism of a Fourdrinier machine embodying my invention;

Fig. 2, is a side elevation. of a suitable means for imparting the vibratory motion;

Fig}, 3, is a fragmentary, top view of the structure shown in Fig. 5?;

Fig. 4, is a section takensubstantially on the line 44 of Fig". 2; and

Fig. 5, is a section taken on the line 5-5 of Fig .4.

My invention in its present'embodiment is illustrated as applied tothe shaker mechanism of a Fourdrinier machine of the kind disclosed in my copending application, Serial No. 648,959 filed. July 2, 1923, which discloses more fully the character of the parts shaken by the present mechanism. I have, however, in the present application briefly shown the organization of these parts, in order to convey a more clear understanding of the invention:

The uitimate parts to be shaken comprise one or more tables or frames designated generally by 6 on which wire rolls 7 are journaled. The table is suitably supported on a main frame 8, in this instance through the agency of a plurality of flexible elements 9 which permitthe table to be swung back andforth in a horizontal plane. In view of the large number and size of the rolls and the desire to reduce as much as possible the weight of the table or tables, as the case may be, it, is necessary to impart this shaker or vibratory motion at longitudinally spaced points on the table through the intermediary of individual motidn-transmitting trainsor connections the particular construction of which. is not important to the present invention but will be described fixed to an oscillatory or rock shaft 12, and a connection between the shaker arm 11 and table ti comprising a strap 13, a yoke 14 and a connection-box 15.

The shaft 12 may be rocked or oscillated by any suitable means, such as a rocker arm 16 actuated by a power driven device comprising a motor 17 connected to rotate an cecentric wrist-pin 18 which in turn operates a'connecting-rod 19 connected to the rocker arm 16 for oscillating or vibrating the latter.

According to my invention the shaft 12 is mounted at longitudinally spaced points on flexible slab-like elements arranged on a base to carrythe weight of the shaft and parts connected thereto and likewise to provide lateral support therefor so as to carry the shaft in a fixed location and yet permit oscillation of the shaft about its longitudinal axis. Said flexible shaft-supporting elements are preferably disposed radially with respect to the shaft and fixedly attached or clamped at their inner ends to the shaft and at their outer ends to a Slllt'.

able frame or base structure. More particularly, I prefer to employ flexible elements such as flat springs 21 and.22 arranged in a vertical and a horizontal plane, respectively, and secured at their inner ends to the shaft 12 and at their outer ends to a stationary base casting In the example shown, said elements abut against the shaft 12 as shown in Fig. 5, although this is not essential. and are clamped by means of bolts 24 and clamping plates 25 to lugs 26 and 27 respectively said lugs being integral with the lower half 28 of the bearing-box which secures the shaker arm 11 to the shaft. In order to connect said elements close to the shaft the lugs 26 and 27 are olfset to one side of the bearing-box 28 as shown in Fig.

4 and located contiguous to the shaft. In the present embodiment each of said elements comprises a flat slab of hard wood,

such-"for example, as hickory, with the grain running lengthwise of the slab coplanar therewith. Elements of this kind have a molecular structure exceptionally well suited for the purposes in mind; and. inasmuch as the vibratory motion at the, periphery of the shaft 12 is comparatively small. in this instance not more than a sixteenth of an inch. the hard wood slabs are amply flexible for the purpose. These supporting elements are a substitute for the usual shaft-supporting bearings, one set of slabs being provided in the place of each such bearing. preferably adjacent to the respective shaker arms 11, as shown in Fig. 4.

It is believed that the foregoing conveys a clear understanding of the objects prefaced above and while I have illustrated but a single working embodiment it should be understood thatchanges might be made in details of construction without departing from the spirit and scope of the invention as expressed in the appended claims, in which- I claim:

1. The mounting for an oscillatory shaft comprising sets of flat springs fixed at longitudinally spaced points to the shaft in radial relation thereto and spaced circumferentially to provide vertical and lateral support therefor;

2. The mounting for an oscillatory partcon'iprising a'horizontally and a vertically disposed flat, flexibleelement in planes intersecting the axis of oscillation and providing vertical and lateral support for said part.

3. The mounting for an oscillatory part comprising a plurality of slab-like flexible elements in circumferentially spaced relation about the axis of oscillation of said part, said elements bein fixed at their inlongitudinal axis.

8. Shaker mechanism for Fourdrinier machines including a rock shaft, and hickory slabs roviding the support for said shaft, said s abs being arranged so that the shaft may oscillate about its longitudinal axis.

9. Means providing mounting and support for an oscillatory shaft comprising slabs of hickory or the like, radial with respect to the shaft and fixed at their inner ends thereto, and a stationary support to which the outer ends of said slabs are fixed.

10. Shaker mechanism of the character described comprising, in combination, a rock shaft, a stationary base, and fiat, flexible elements supporting the shaft on the base with capacity for the shaft to oscillate about its lon itudinal axis.

11. haker mechanism for Fourdrinicr machines comprising in combination with the wire-supporting table. of a rock shaft, means for roclring'said shaft, means operated by the shaft for shaking the table, and supports forthe shaft, each comprising comparatively flat, flexible springs, one in the vertical plane beneath the shaft and another in a horizontal plane at one side of the shaft.

12. Shaker inechanism for Fourdrinier machines comprising, in combination, with the Wire-supporting table, of a rochshaft,

supports for the shaftg'each comprising: a,

stationary hase,"and a plurality of flexible elements interposedhetween the baseand the shaft in circumferentially spaced relation, said elements being" respectively rigidly attsc'hed at their inner ends tothe shaft and at their outer ends tothe base. l3. Aniounting for a, rock shaft compris ing, in combination, a base, and a plurality of flexible shaft-supporting elements circumferentially spaced about ihe shaft pend fixedly attached at their inner ends thereto and at their outer ends to the h'ase, thrcngh the flexnre of which the shaft may oscillate about its longitudinal axis. f 14. A shaft mounting of the character described comprising, in combination, a shaft, a stationary supporting pal-he shaker h m having a split bearing hox on the sl niift means rigidiy secnring' said shaker arm to the shaft including bolts for clsmpingthe bearing hox thereto, laterally projectingfn art, and -means supporting saidpari; on the lugs at circnmferentisllyl spaced points on said hearing hex, flat, 'fiexib s shaftrsuppo ro i'ng elements bolted to saidilugs' ind extend ing radially from the shaft, and meansrigidly securing-the outer ends of said elements to the hose, whereby through the fiexure'of said elements thensliaft has capacity for I oscillation about itslongitudinslhizis.

'machines comprising; in, ;combination, :1 table, shaker arms connected to said table 15, Shaker mechanism for Fourdrinier ed to oscillate by ions halting it, a rock shsft to which said arms are attached, meansyfor rapidly rocking the shafty'snd a plurality o flat fiexible-elem'ehts connected to ive vertical, and

lateral -snppori for the shaft, "and through the fiexnre" of which the shaft is 'ndopted to be oscillated about its longitudinal axis.

' '16. Shekel-mechanism of the character described comprising, in combination, a rock shaft, means for rapidly oscillating said shaft aboilt its longitudinal axis, means connected to said shaft for transmitting the I shaker motion, and means providing the support for the shaft comprising a plurnlit of fiat, flexible elements spaced apart iongiments being disposed beneaththe shaft and the horizontiil elements at one side thereof,

' tndinally of the shaftin horizontal and Versaid elements heingrigidly attziched to the sl'iaft st'their ends adjacent thereto,.whereby theshgftxeceives' itswerticnl end lateral support" til rough said elenients and is adapt- 7 reason of the flexure thereof.

17.111 combination, 5 lease an'oscillatory J aseitompnsing a plurality of hardwood slahs disposedin radial relation to the axisof oscillation of said pm 'e'nd s aced circumferentially thereabont, said s abs being fixed'at their inner ends to said art and at their outer ends to' the base an providing both vertical and lateral s11 port for said 

